[2] Pan-STARRS' photometric survey characterized Maryphil as an S-type and Q-type asteroid,[9] while the Collaborative Asteroid Lightcurve Link (CALL) assumes it to be a common S-type,[3] which is also the overall spectral type form members of the Phocaea family.
[10]: 23 In November 2006, a rotational lightcurve of Maryphil was obtained from photometric observations by American astronomer Brian Warner at his Palmer Divide Observatory in Colorado.
Lightcurve analysis gave a rotation period of 11.653 hours with a brightness amplitude of 0.44 magnitude (U=3-).
[6][7] CALL assumes a standard albedo for Phocaea asteroids of 0.23, and calculates a diameter of 6.96 kilometers based on an absolute magnitude of 13.0.
The official naming citation was published by the Minor Planet Center on 3 July 2012 (M.P.C.